diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/usb/gadget/legacy/nokia.c | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/drivers/usb/gadget/legacy/nokia.c b/drivers/usb/gadget/legacy/nokia.c new file mode 100644 index 000000000..2e15f9a32 --- /dev/null +++ b/drivers/usb/gadget/legacy/nokia.c @@ -0,0 +1,432 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * nokia.c -- Nokia Composite Gadget Driver + * + * Copyright (C) 2008-2010 Nokia Corporation + * Contact: Felipe Balbi <felipe.balbi@nokia.com> + * + * This gadget driver borrows from serial.c which is: + * + * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com) + * Copyright (C) 2008 by David Brownell + * Copyright (C) 2008 by Nokia Corporation + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/device.h> + +#include "u_serial.h" +#include "u_ether.h" +#include "u_phonet.h" +#include "u_ecm.h" +#include "f_mass_storage.h" + +/* Defines */ + +#define NOKIA_VERSION_NUM 0x0211 +#define NOKIA_LONG_NAME "N900 (PC-Suite Mode)" + +USB_GADGET_COMPOSITE_OPTIONS(); + +USB_ETHERNET_MODULE_PARAMETERS(); + +static struct fsg_module_parameters fsg_mod_data = { + .stall = 0, + .luns = 2, + .removable_count = 2, + .removable = { 1, 1, }, +}; + +#ifdef CONFIG_USB_GADGET_DEBUG_FILES + +static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; + +#else + +/* + * Number of buffers we will use. + * 2 is usually enough for good buffering pipeline + */ +#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS + +#endif /* CONFIG_USB_DEBUG */ + +FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); + +#define NOKIA_VENDOR_ID 0x0421 /* Nokia */ +#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */ + +/* string IDs are assigned dynamically */ + +#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX + +static char manufacturer_nokia[] = "Nokia"; +static const char description_nokia[] = "PC-Suite Configuration"; + +static struct usb_string strings_dev[] = { + [USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia, + [USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME, + [USB_GADGET_SERIAL_IDX].s = "", + [STRING_DESCRIPTION_IDX].s = description_nokia, + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab_dev = { + .language = 0x0409, /* en-us */ + .strings = strings_dev, +}; + +static struct usb_gadget_strings *dev_strings[] = { + &stringtab_dev, + NULL, +}; + +static struct usb_device_descriptor device_desc = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + /* .bcdUSB = DYNAMIC */ + .bDeviceClass = USB_CLASS_COMM, + .idVendor = cpu_to_le16(NOKIA_VENDOR_ID), + .idProduct = cpu_to_le16(NOKIA_PRODUCT_ID), + .bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM), + /* .iManufacturer = DYNAMIC */ + /* .iProduct = DYNAMIC */ + .bNumConfigurations = 1, +}; + +/*-------------------------------------------------------------------------*/ + +/* Module */ +MODULE_DESCRIPTION("Nokia composite gadget driver for N900"); +MODULE_AUTHOR("Felipe Balbi"); +MODULE_LICENSE("GPL"); + +/*-------------------------------------------------------------------------*/ +static struct usb_function *f_acm_cfg1; +static struct usb_function *f_acm_cfg2; +static struct usb_function *f_ecm_cfg1; +static struct usb_function *f_ecm_cfg2; +static struct usb_function *f_obex1_cfg1; +static struct usb_function *f_obex2_cfg1; +static struct usb_function *f_obex1_cfg2; +static struct usb_function *f_obex2_cfg2; +static struct usb_function *f_phonet_cfg1; +static struct usb_function *f_phonet_cfg2; +static struct usb_function *f_msg_cfg1; +static struct usb_function *f_msg_cfg2; + + +static struct usb_configuration nokia_config_500ma_driver = { + .label = "Bus Powered", + .bConfigurationValue = 1, + /* .iConfiguration = DYNAMIC */ + .bmAttributes = USB_CONFIG_ATT_ONE, + .MaxPower = 500, +}; + +static struct usb_configuration nokia_config_100ma_driver = { + .label = "Self Powered", + .bConfigurationValue = 2, + /* .iConfiguration = DYNAMIC */ + .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, + .MaxPower = 100, +}; + +static struct usb_function_instance *fi_acm; +static struct usb_function_instance *fi_ecm; +static struct usb_function_instance *fi_obex1; +static struct usb_function_instance *fi_obex2; +static struct usb_function_instance *fi_phonet; +static struct usb_function_instance *fi_msg; + +static int nokia_bind_config(struct usb_configuration *c) +{ + struct usb_function *f_acm; + struct usb_function *f_phonet = NULL; + struct usb_function *f_obex1 = NULL; + struct usb_function *f_ecm; + struct usb_function *f_obex2 = NULL; + struct usb_function *f_msg; + int status = 0; + int obex1_stat = -1; + int obex2_stat = -1; + int phonet_stat = -1; + + if (!IS_ERR(fi_phonet)) { + f_phonet = usb_get_function(fi_phonet); + if (IS_ERR(f_phonet)) + pr_debug("could not get phonet function\n"); + } + + if (!IS_ERR(fi_obex1)) { + f_obex1 = usb_get_function(fi_obex1); + if (IS_ERR(f_obex1)) + pr_debug("could not get obex function 0\n"); + } + + if (!IS_ERR(fi_obex2)) { + f_obex2 = usb_get_function(fi_obex2); + if (IS_ERR(f_obex2)) + pr_debug("could not get obex function 1\n"); + } + + f_acm = usb_get_function(fi_acm); + if (IS_ERR(f_acm)) { + status = PTR_ERR(f_acm); + goto err_get_acm; + } + + f_ecm = usb_get_function(fi_ecm); + if (IS_ERR(f_ecm)) { + status = PTR_ERR(f_ecm); + goto err_get_ecm; + } + + f_msg = usb_get_function(fi_msg); + if (IS_ERR(f_msg)) { + status = PTR_ERR(f_msg); + goto err_get_msg; + } + + if (!IS_ERR_OR_NULL(f_phonet)) { + phonet_stat = usb_add_function(c, f_phonet); + if (phonet_stat) + pr_debug("could not add phonet function\n"); + } + + if (!IS_ERR_OR_NULL(f_obex1)) { + obex1_stat = usb_add_function(c, f_obex1); + if (obex1_stat) + pr_debug("could not add obex function 0\n"); + } + + if (!IS_ERR_OR_NULL(f_obex2)) { + obex2_stat = usb_add_function(c, f_obex2); + if (obex2_stat) + pr_debug("could not add obex function 1\n"); + } + + status = usb_add_function(c, f_acm); + if (status) + goto err_conf; + + status = usb_add_function(c, f_ecm); + if (status) { + pr_debug("could not bind ecm config %d\n", status); + goto err_ecm; + } + + status = usb_add_function(c, f_msg); + if (status) + goto err_msg; + + if (c == &nokia_config_500ma_driver) { + f_acm_cfg1 = f_acm; + f_ecm_cfg1 = f_ecm; + f_phonet_cfg1 = f_phonet; + f_obex1_cfg1 = f_obex1; + f_obex2_cfg1 = f_obex2; + f_msg_cfg1 = f_msg; + } else { + f_acm_cfg2 = f_acm; + f_ecm_cfg2 = f_ecm; + f_phonet_cfg2 = f_phonet; + f_obex1_cfg2 = f_obex1; + f_obex2_cfg2 = f_obex2; + f_msg_cfg2 = f_msg; + } + + return status; +err_msg: + usb_remove_function(c, f_ecm); +err_ecm: + usb_remove_function(c, f_acm); +err_conf: + if (!obex2_stat) + usb_remove_function(c, f_obex2); + if (!obex1_stat) + usb_remove_function(c, f_obex1); + if (!phonet_stat) + usb_remove_function(c, f_phonet); + usb_put_function(f_msg); +err_get_msg: + usb_put_function(f_ecm); +err_get_ecm: + usb_put_function(f_acm); +err_get_acm: + if (!IS_ERR_OR_NULL(f_obex2)) + usb_put_function(f_obex2); + if (!IS_ERR_OR_NULL(f_obex1)) + usb_put_function(f_obex1); + if (!IS_ERR_OR_NULL(f_phonet)) + usb_put_function(f_phonet); + return status; +} + +static int nokia_bind(struct usb_composite_dev *cdev) +{ + struct usb_gadget *gadget = cdev->gadget; + struct fsg_opts *fsg_opts; + struct fsg_config fsg_config; + int status; + + status = usb_string_ids_tab(cdev, strings_dev); + if (status < 0) + goto err_usb; + device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; + device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; + status = strings_dev[STRING_DESCRIPTION_IDX].id; + nokia_config_500ma_driver.iConfiguration = status; + nokia_config_100ma_driver.iConfiguration = status; + + if (!gadget_is_altset_supported(gadget)) { + status = -ENODEV; + goto err_usb; + } + + fi_phonet = usb_get_function_instance("phonet"); + if (IS_ERR(fi_phonet)) + pr_debug("could not find phonet function\n"); + + fi_obex1 = usb_get_function_instance("obex"); + if (IS_ERR(fi_obex1)) + pr_debug("could not find obex function 1\n"); + + fi_obex2 = usb_get_function_instance("obex"); + if (IS_ERR(fi_obex2)) + pr_debug("could not find obex function 2\n"); + + fi_acm = usb_get_function_instance("acm"); + if (IS_ERR(fi_acm)) { + status = PTR_ERR(fi_acm); + goto err_obex2_inst; + } + + fi_ecm = usb_get_function_instance("ecm"); + if (IS_ERR(fi_ecm)) { + status = PTR_ERR(fi_ecm); + goto err_acm_inst; + } + + fi_msg = usb_get_function_instance("mass_storage"); + if (IS_ERR(fi_msg)) { + status = PTR_ERR(fi_msg); + goto err_ecm_inst; + } + + /* set up mass storage function */ + fsg_config_from_params(&fsg_config, &fsg_mod_data, fsg_num_buffers); + fsg_config.vendor_name = "Nokia"; + fsg_config.product_name = "N900"; + + fsg_opts = fsg_opts_from_func_inst(fi_msg); + fsg_opts->no_configfs = true; + + status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers); + if (status) + goto err_msg_inst; + + status = fsg_common_set_cdev(fsg_opts->common, cdev, fsg_config.can_stall); + if (status) + goto err_msg_buf; + + fsg_common_set_sysfs(fsg_opts->common, true); + + status = fsg_common_create_luns(fsg_opts->common, &fsg_config); + if (status) + goto err_msg_buf; + + fsg_common_set_inquiry_string(fsg_opts->common, fsg_config.vendor_name, + fsg_config.product_name); + + /* finally register the configuration */ + status = usb_add_config(cdev, &nokia_config_500ma_driver, + nokia_bind_config); + if (status < 0) + goto err_msg_luns; + + status = usb_add_config(cdev, &nokia_config_100ma_driver, + nokia_bind_config); + if (status < 0) + goto err_put_cfg1; + + usb_composite_overwrite_options(cdev, &coverwrite); + dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME); + + return 0; + +err_put_cfg1: + usb_put_function(f_acm_cfg1); + if (!IS_ERR_OR_NULL(f_obex1_cfg1)) + usb_put_function(f_obex1_cfg1); + if (!IS_ERR_OR_NULL(f_obex2_cfg1)) + usb_put_function(f_obex2_cfg1); + if (!IS_ERR_OR_NULL(f_phonet_cfg1)) + usb_put_function(f_phonet_cfg1); + usb_put_function(f_ecm_cfg1); +err_msg_luns: + fsg_common_remove_luns(fsg_opts->common); +err_msg_buf: + fsg_common_free_buffers(fsg_opts->common); +err_msg_inst: + usb_put_function_instance(fi_msg); +err_ecm_inst: + usb_put_function_instance(fi_ecm); +err_acm_inst: + usb_put_function_instance(fi_acm); +err_obex2_inst: + if (!IS_ERR(fi_obex2)) + usb_put_function_instance(fi_obex2); + if (!IS_ERR(fi_obex1)) + usb_put_function_instance(fi_obex1); + if (!IS_ERR(fi_phonet)) + usb_put_function_instance(fi_phonet); +err_usb: + return status; +} + +static int nokia_unbind(struct usb_composite_dev *cdev) +{ + if (!IS_ERR_OR_NULL(f_obex1_cfg2)) + usb_put_function(f_obex1_cfg2); + if (!IS_ERR_OR_NULL(f_obex2_cfg2)) + usb_put_function(f_obex2_cfg2); + if (!IS_ERR_OR_NULL(f_obex1_cfg1)) + usb_put_function(f_obex1_cfg1); + if (!IS_ERR_OR_NULL(f_obex2_cfg1)) + usb_put_function(f_obex2_cfg1); + if (!IS_ERR_OR_NULL(f_phonet_cfg1)) + usb_put_function(f_phonet_cfg1); + if (!IS_ERR_OR_NULL(f_phonet_cfg2)) + usb_put_function(f_phonet_cfg2); + usb_put_function(f_acm_cfg1); + usb_put_function(f_acm_cfg2); + usb_put_function(f_ecm_cfg1); + usb_put_function(f_ecm_cfg2); + usb_put_function(f_msg_cfg1); + usb_put_function(f_msg_cfg2); + + usb_put_function_instance(fi_msg); + usb_put_function_instance(fi_ecm); + if (!IS_ERR(fi_obex2)) + usb_put_function_instance(fi_obex2); + if (!IS_ERR(fi_obex1)) + usb_put_function_instance(fi_obex1); + if (!IS_ERR(fi_phonet)) + usb_put_function_instance(fi_phonet); + usb_put_function_instance(fi_acm); + + return 0; +} + +static struct usb_composite_driver nokia_driver = { + .name = "g_nokia", + .dev = &device_desc, + .strings = dev_strings, + .max_speed = USB_SPEED_HIGH, + .bind = nokia_bind, + .unbind = nokia_unbind, +}; + +module_usb_composite_driver(nokia_driver); |